| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #include "PathOpsTestCommon.h" |
| #include "SkIntersections.h" |
| #include "SkOpContour.h" |
| #include "SkOpSegment.h" |
| #include "SkRandom.h" |
| #include "SkTSort.h" |
| #include "Test.h" |
| |
| static bool gDisableAngleTests = true; |
| |
| static float next(float f) |
| { |
| int fBits = SkFloatAs2sCompliment(f); |
| ++fBits; |
| float fNext = Sk2sComplimentAsFloat(fBits); |
| return fNext; |
| } |
| |
| static float prev(float f) |
| { |
| int fBits = SkFloatAs2sCompliment(f); |
| --fBits; |
| float fNext = Sk2sComplimentAsFloat(fBits); |
| return fNext; |
| } |
| |
| DEF_TEST(PathOpsAngleFindCrossEpsilon, reporter) { |
| if (gDisableAngleTests) { |
| return; |
| } |
| SkRandom ran; |
| int maxEpsilon = 0; |
| for (int index = 0; index < 10000000; ++index) { |
| SkDLine line = {{{0, 0}, {ran.nextRangeF(0.0001f, 1000), ran.nextRangeF(0.0001f, 1000)}}}; |
| for (int inner = 0; inner < 10; ++inner) { |
| float t = ran.nextRangeF(0.0001f, 1); |
| SkDPoint dPt = line.ptAtT(t); |
| SkPoint pt = dPt.asSkPoint(); |
| float xs[3] = { prev(pt.fX), pt.fX, next(pt.fX) }; |
| float ys[3] = { prev(pt.fY), pt.fY, next(pt.fY) }; |
| for (int xIdx = 0; xIdx < 3; ++xIdx) { |
| for (int yIdx = 0; yIdx < 3; ++yIdx) { |
| SkPoint test = { xs[xIdx], ys[yIdx] }; |
| float p1 = SkDoubleToScalar(line[1].fX * test.fY); |
| float p2 = SkDoubleToScalar(line[1].fY * test.fX); |
| int p1Bits = SkFloatAs2sCompliment(p1); |
| int p2Bits = SkFloatAs2sCompliment(p2); |
| int epsilon = SkTAbs(p1Bits - p2Bits); |
| if (maxEpsilon < epsilon) { |
| SkDebugf("line={{0, 0}, {%1.7g, %1.7g}} t=%1.7g pt={%1.7g, %1.7g}" |
| " epsilon=%d\n", |
| line[1].fX, line[1].fY, t, test.fX, test.fY, epsilon); |
| maxEpsilon = epsilon; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| DEF_TEST(PathOpsAngleFindQuadEpsilon, reporter) { |
| if (gDisableAngleTests) { |
| return; |
| } |
| SkRandom ran; |
| int maxEpsilon = 0; |
| double maxAngle = 0; |
| for (int index = 0; index < 100000; ++index) { |
| SkDLine line = {{{0, 0}, {ran.nextRangeF(0.0001f, 1000), ran.nextRangeF(0.0001f, 1000)}}}; |
| float t = ran.nextRangeF(0.0001f, 1); |
| SkDPoint dPt = line.ptAtT(t); |
| float t2 = ran.nextRangeF(0.0001f, 1); |
| SkDPoint qPt = line.ptAtT(t2); |
| float t3 = ran.nextRangeF(0.0001f, 1); |
| SkDPoint qPt2 = line.ptAtT(t3); |
| qPt.fX += qPt2.fY; |
| qPt.fY -= qPt2.fX; |
| QuadPts q = {{line[0], dPt, qPt}}; |
| SkDQuad quad; |
| quad.debugSet(q.fPts); |
| // binary search for maximum movement of quad[1] towards test that still has 1 intersection |
| double moveT = 0.5f; |
| double deltaT = moveT / 2; |
| SkDPoint last; |
| do { |
| last = quad[1]; |
| quad[1].fX = dPt.fX - line[1].fY * moveT; |
| quad[1].fY = dPt.fY + line[1].fX * moveT; |
| SkIntersections i; |
| i.intersect(quad, line); |
| REPORTER_ASSERT(reporter, i.used() > 0); |
| if (i.used() == 1) { |
| moveT += deltaT; |
| } else { |
| moveT -= deltaT; |
| } |
| deltaT /= 2; |
| } while (last.asSkPoint() != quad[1].asSkPoint()); |
| float p1 = SkDoubleToScalar(line[1].fX * last.fY); |
| float p2 = SkDoubleToScalar(line[1].fY * last.fX); |
| int p1Bits = SkFloatAs2sCompliment(p1); |
| int p2Bits = SkFloatAs2sCompliment(p2); |
| int epsilon = SkTAbs(p1Bits - p2Bits); |
| if (maxEpsilon < epsilon) { |
| SkDebugf("line={{0, 0}, {%1.7g, %1.7g}} t=%1.7g/%1.7g/%1.7g moveT=%1.7g" |
| " pt={%1.7g, %1.7g} epsilon=%d\n", |
| line[1].fX, line[1].fY, t, t2, t3, moveT, last.fX, last.fY, epsilon); |
| maxEpsilon = epsilon; |
| } |
| double a1 = atan2(line[1].fY, line[1].fX); |
| double a2 = atan2(last.fY, last.fX); |
| double angle = fabs(a1 - a2); |
| if (maxAngle < angle) { |
| SkDebugf("line={{0, 0}, {%1.7g, %1.7g}} t=%1.7g/%1.7g/%1.7g moveT=%1.7g" |
| " pt={%1.7g, %1.7g} angle=%1.7g\n", |
| line[1].fX, line[1].fY, t, t2, t3, moveT, last.fX, last.fY, angle); |
| maxAngle = angle; |
| } |
| } |
| } |
| |
| static int find_slop(double x, double y, double rx, double ry) { |
| int slopBits = 0; |
| bool less1, less2; |
| double absX = fabs(x); |
| double absY = fabs(y); |
| double length = absX < absY ? absX / 2 + absY : absX + absY / 2; |
| int exponent; |
| (void) frexp(length, &exponent); |
| double epsilon = ldexp(FLT_EPSILON, exponent); |
| do { |
| // get the length as the larger plus half the smaller (both same signs) |
| // find the ulps of the length |
| // compute the offsets from there |
| double xSlop = epsilon * slopBits; |
| double ySlop = x * y < 0 ? -xSlop : xSlop; // OPTIMIZATION: use copysign / _copysign ? |
| double x1 = x - xSlop; |
| double y1 = y + ySlop; |
| double x_ry1 = x1 * ry; |
| double rx_y1 = rx * y1; |
| less1 = x_ry1 < rx_y1; |
| double x2 = x + xSlop; |
| double y2 = y - ySlop; |
| double x_ry2 = x2 * ry; |
| double rx_y2 = rx * y2; |
| less2 = x_ry2 < rx_y2; |
| } while (less1 == less2 && ++slopBits); |
| return slopBits; |
| } |
| |
| // from http://stackoverflow.com/questions/1427422/cheap-algorithm-to-find-measure-of-angle-between-vectors |
| static double diamond_angle(double y, double x) |
| { |
| if (y >= 0) |
| return (x >= 0 ? y/(x+y) : 1-x/(-x+y)); |
| else |
| return (x < 0 ? 2-y/(-x-y) : 3+x/(x-y)); |
| } |
| |
| static const double slopTests[][4] = { |
| // x y rx ry |
| {-0.058554756452593892, -0.18804585843827226, -0.018568569646021160, -0.059615294434479438}, |
| {-0.0013717412948608398, 0.0041152238845825195, -0.00045837944195925573, 0.0013753175735478074}, |
| {-2.1033774145221198, -1.4046019261273715e-008, -0.70062688352066704, -1.2706324683777995e-008}, |
| }; |
| |
| DEF_TEST(PathOpsAngleFindSlop, reporter) { |
| if (gDisableAngleTests) { |
| return; |
| } |
| for (int index = 0; index < (int) SK_ARRAY_COUNT(slopTests); ++index) { |
| const double* slopTest = slopTests[index]; |
| double x = slopTest[0]; |
| double y = slopTest[1]; |
| double rx = slopTest[2]; |
| double ry = slopTest[3]; |
| SkDebugf("%s xy %d=%d\n", __FUNCTION__, index, find_slop(x, y, rx, ry)); |
| SkDebugf("%s rxy %d=%d\n", __FUNCTION__, index, find_slop(rx, ry, x, y)); |
| double angle = diamond_angle(y, x); |
| double rAngle = diamond_angle(ry, rx); |
| double diff = fabs(angle - rAngle); |
| SkDebugf("%s diamond xy=%1.9g rxy=%1.9g diff=%1.9g factor=%d\n", __FUNCTION__, |
| angle, rAngle, diff, (int) (diff / FLT_EPSILON)); |
| } |
| } |
| |
| class PathOpsAngleTester { |
| public: |
| static int After(SkOpAngle& lh, SkOpAngle& rh) { |
| return lh.after(&rh); |
| } |
| |
| static int AllOnOneSide(SkOpAngle& lh, SkOpAngle& rh) { |
| return lh.allOnOneSide(&rh); |
| } |
| |
| static int ConvexHullOverlaps(SkOpAngle& lh, SkOpAngle& rh) { |
| return lh.convexHullOverlaps(&rh); |
| } |
| |
| static int Orderable(SkOpAngle& lh, SkOpAngle& rh) { |
| return lh.orderable(&rh); |
| } |
| |
| static int EndsIntersect(SkOpAngle& lh, SkOpAngle& rh) { |
| return lh.endsIntersect(&rh); |
| } |
| |
| static void SetNext(SkOpAngle& lh, SkOpAngle& rh) { |
| lh.fNext = &rh; |
| } |
| }; |
| |
| class PathOpsSegmentTester { |
| public: |
| static void DebugReset(SkOpSegment* segment) { |
| segment->debugReset(); |
| } |
| }; |
| |
| struct CircleData { |
| const CubicPts fPts; |
| const int fPtCount; |
| SkPoint fShortPts[4]; |
| }; |
| |
| static CircleData circleDataSet[] = { |
| { {{{313.0155029296875, 207.90290832519531}, {320.05078125, 227.58743286132812}}}, 2, {} }, |
| { {{{313.0155029296875, 207.90290832519531}, {313.98246891063195, 219.33615203830394}, |
| {320.05078125, 227.58743286132812}}}, 3, {} }, |
| }; |
| |
| static const int circleDataSetSize = (int) SK_ARRAY_COUNT(circleDataSet); |
| |
| DEF_TEST(PathOpsAngleCircle, reporter) { |
| SkSTArenaAlloc<4096> allocator; |
| SkOpContourHead contour; |
| SkOpGlobalState state(&contour, &allocator SkDEBUGPARAMS(false) SkDEBUGPARAMS(nullptr)); |
| contour.init(&state, false, false); |
| for (int index = 0; index < circleDataSetSize; ++index) { |
| CircleData& data = circleDataSet[index]; |
| for (int idx2 = 0; idx2 < data.fPtCount; ++idx2) { |
| data.fShortPts[idx2] = data.fPts.fPts[idx2].asSkPoint(); |
| } |
| switch (data.fPtCount) { |
| case 2: |
| contour.addLine(data.fShortPts); |
| break; |
| case 3: |
| contour.addQuad(data.fShortPts); |
| break; |
| case 4: |
| contour.addCubic(data.fShortPts); |
| break; |
| } |
| } |
| SkOpSegment* first = contour.first(); |
| first->debugAddAngle(0, 1); |
| SkOpSegment* next = first->next(); |
| next->debugAddAngle(0, 1); |
| PathOpsAngleTester::Orderable(*first->debugLastAngle(), *next->debugLastAngle()); |
| } |
| |
| struct IntersectData { |
| const CubicPts fPts; |
| const int fPtCount; |
| double fTStart; |
| double fTEnd; |
| SkPoint fShortPts[4]; |
| }; |
| |
| static IntersectData intersectDataSet1[] = { |
| { {{{322.935669,231.030273}, {312.832214,220.393295}, {312.832214,203.454178}}}, 3, |
| 0.865309956, 0.154740299, {} }, |
| { {{{322.12738,233.397751}, {295.718353,159.505829}}}, 2, |
| 0.345028807, 0.0786326511, {} }, |
| { {{{322.935669,231.030273}, {312.832214,220.393295}, {312.832214,203.454178}}}, 3, |
| 0.865309956, 1, {} }, |
| { {{{322.12738,233.397751}, {295.718353,159.505829}}}, 2, |
| 0.345028807, 1, {} }, |
| }; |
| |
| static IntersectData intersectDataSet2[] = { |
| { {{{364.390686,157.898193}, {375.281769,136.674606}, {396.039917,136.674606}}}, 3, |
| 0.578520747, 1, {} }, |
| { {{{364.390686,157.898193}, {375.281769,136.674606}, {396.039917,136.674606}}}, 3, |
| 0.578520747, 0.536512973, {} }, |
| { {{{366.608826,151.196014}, {378.803101,136.674606}, {398.164948,136.674606}}}, 3, |
| 0.490456543, 1, {} }, |
| }; |
| |
| static IntersectData intersectDataSet3[] = { |
| { {{{2.000000,0.000000}, {1.33333333,0.66666667}}}, 2, 1, 0, {} }, |
| { {{{1.33333333,0.66666667}, {0.000000,2.000000}}}, 2, 0, 0.25, {} }, |
| { {{{2.000000,2.000000}, {1.33333333,0.66666667}}}, 2, 1, 0, {} }, |
| }; |
| |
| static IntersectData intersectDataSet4[] = { |
| { {{{1.3333333,0.6666667}, {0.000,2.000}}}, 2, 0.250000006, 0, {} }, |
| { {{{1.000,0.000}, {1.000,1.000}}}, 2, 1, 0, {} }, |
| { {{{1.000,1.000}, {0.000,0.000}}}, 2, 0, 1, {} }, |
| }; |
| |
| static IntersectData intersectDataSet5[] = { |
| { {{{0.000,0.000}, {1.000,0.000}, {1.000,1.000}}}, 3, 1, 0.666666667, {} }, |
| { {{{0.000,0.000}, {2.000,1.000}, {0.000,2.000}}}, 3, 0.5, 1, {} }, |
| { {{{0.000,0.000}, {2.000,1.000}, {0.000,2.000}}}, 3, 0.5, 0, {} }, |
| }; |
| |
| static IntersectData intersectDataSet6[] = { // pathops_visualizer.htm:3658 |
| { {{{0.000,1.000}, {3.000,4.000}, {1.000,0.000}, {3.000,0.000}}}, 4, 0.0925339054, 0, {} }, // pathops_visualizer.htm:3616 |
| { {{{0.000,1.000}, {0.000,3.000}, {1.000,0.000}, {4.000,3.000}}}, 4, 0.453872386, 0, {} }, // pathops_visualizer.htm:3616 |
| { {{{0.000,1.000}, {3.000,4.000}, {1.000,0.000}, {3.000,0.000}}}, 4, 0.0925339054, 0.417096368, {} }, // pathops_visualizer.htm:3616 |
| }; |
| |
| static IntersectData intersectDataSet7[] = { // pathops_visualizer.htm:3748 |
| { {{{2.000,1.000}, {0.000,1.000}}}, 2, 0.5, 0, {} }, // pathops_visualizer.htm:3706 |
| { {{{2.000,0.000}, {0.000,2.000}}}, 2, 0.5, 1, {} }, // pathops_visualizer.htm:3706 |
| { {{{0.000,1.000}, {0.000,2.000}, {2.000,0.000}, {2.000,1.000}}}, 4, 0.5, 1, {} }, // pathops_visualizer.htm:3706 |
| }; // |
| |
| static IntersectData intersectDataSet8[] = { // pathops_visualizer.htm:4194 |
| { {{{0.000,1.000}, {2.000,3.000}, {5.000,1.000}, {4.000,3.000}}}, 4, 0.311007457, 0.285714286, {} }, // pathops_visualizer.htm:4152 |
| { {{{1.000,5.000}, {3.000,4.000}, {1.000,0.000}, {3.000,2.000}}}, 4, 0.589885081, 0.999982974, {} }, // pathops_visualizer.htm:4152 |
| { {{{1.000,5.000}, {3.000,4.000}, {1.000,0.000}, {3.000,2.000}}}, 4, 0.589885081, 0.576935809, {} }, // pathops_visualizer.htm:4152 |
| }; // |
| |
| static IntersectData intersectDataSet9[] = { // pathops_visualizer.htm:4142 |
| { {{{0.000,1.000}, {2.000,3.000}, {5.000,1.000}, {4.000,3.000}}}, 4, 0.476627072, 0.311007457, {} }, // pathops_visualizer.htm:4100 |
| { {{{1.000,5.000}, {3.000,4.000}, {1.000,0.000}, {3.000,2.000}}}, 4, 0.999982974, 1, {} }, // pathops_visualizer.htm:4100 |
| { {{{0.000,1.000}, {2.000,3.000}, {5.000,1.000}, {4.000,3.000}}}, 4, 0.476627072, 1, {} }, // pathops_visualizer.htm:4100 |
| }; // |
| |
| static IntersectData intersectDataSet10[] = { // pathops_visualizer.htm:4186 |
| { {{{0.000,1.000}, {1.000,6.000}, {1.000,0.000}, {1.000,0.000}}}, 4, 0.788195121, 0.726275769, {} }, // pathops_visualizer.htm:4144 |
| { {{{0.000,1.000}, {0.000,1.000}, {1.000,0.000}, {6.000,1.000}}}, 4, 0.473378977, 1, {} }, // pathops_visualizer.htm:4144 |
| { {{{0.000,1.000}, {1.000,6.000}, {1.000,0.000}, {1.000,0.000}}}, 4, 0.788195121, 1, {} }, // pathops_visualizer.htm:4144 |
| }; // |
| |
| static IntersectData intersectDataSet11[] = { // pathops_visualizer.htm:4704 |
| { {{{979.305,561.000}, {1036.695,291.000}}}, 2, 0.888888874, 0.11111108, {} }, // pathops_visualizer.htm:4662 |
| { {{{1006.695,291.000}, {1023.264,291.000}, {1033.840,304.431}, {1030.318,321.000}}}, 4, 1, 0, {} }, // pathops_visualizer.htm:4662 |
| { {{{979.305,561.000}, {1036.695,291.000}}}, 2, 0.888888874, 1, {} }, // pathops_visualizer.htm:4662 |
| }; // |
| |
| static IntersectData intersectDataSet12[] = { // pathops_visualizer.htm:5481 |
| { {{{67.000,912.000}, {67.000,913.000}}}, 2, 1, 0, {} }, // pathops_visualizer.htm:5439 |
| { {{{67.000,913.000}, {67.000,917.389}, {67.224,921.726}, {67.662,926.000}}}, 4, 0, 1, {} }, // pathops_visualizer.htm:5439 |
| { {{{194.000,1041.000}, {123.860,1041.000}, {67.000,983.692}, {67.000,913.000}}}, 4, 1, 0, {} }, // pathops_visualizer.htm:5439 |
| }; // |
| |
| static IntersectData intersectDataSet13[] = { // pathops_visualizer.htm:5735 |
| { {{{6.000,0.000}, {0.000,4.000}}}, 2, 0.625, 0.25, {} }, // pathops_visualizer.htm:5693 |
| { {{{0.000,1.000}, {0.000,6.000}, {4.000,0.000}, {6.000,1.000}}}, 4, 0.5, 0.833333333, {} }, // pathops_visualizer.htm:5693 |
| { {{{0.000,1.000}, {0.000,6.000}, {4.000,0.000}, {6.000,1.000}}}, 4, 0.5, 0.379043969, {} }, // pathops_visualizer.htm:5693 |
| }; // |
| |
| static IntersectData intersectDataSet14[] = { // pathops_visualizer.htm:5875 |
| { {{{0.000,1.000}, {4.000,6.000}, {2.000,1.000}, {2.000,0.000}}}, 4, 0.0756502183, 0.0594570973, {} }, // pathops_visualizer.htm:5833 |
| { {{{1.000,2.000}, {0.000,2.000}, {1.000,0.000}, {6.000,4.000}}}, 4, 0.0756502184, 0, {} }, // pathops_visualizer.htm:5833 |
| { {{{0.000,1.000}, {4.000,6.000}, {2.000,1.000}, {2.000,0.000}}}, 4, 0.0756502183, 0.531917258, {} }, // pathops_visualizer.htm:5833 |
| }; // |
| |
| static IntersectData intersectDataSet15[] = { // pathops_visualizer.htm:6580 |
| { {{{490.435,879.407}, {405.593,909.436}}}, 2, 0.500554405, 1, {} }, // pathops_visualizer.htm:6538 |
| { {{{447.967,894.438}, {448.007,894.424}, {448.014,894.422}}}, 3, 0, 1, {} }, // pathops_visualizer.htm:6538 |
| { {{{490.435,879.407}, {405.593,909.436}}}, 2, 0.500554405, 0.500000273, {} }, // pathops_visualizer.htm:6538 |
| }; // |
| |
| static IntersectData intersectDataSet16[] = { // pathops_visualizer.htm:7419 |
| { {{{1.000,4.000}, {4.000,5.000}, {3.000,2.000}, {6.000,3.000}}}, 4, 0.5, 0, {} }, // pathops_visualizer.htm:7377 |
| { {{{2.000,3.000}, {3.000,6.000}, {4.000,1.000}, {5.000,4.000}}}, 4, 0.5, 0.112701665, {} }, // pathops_visualizer.htm:7377 |
| { {{{5.000,4.000}, {2.000,3.000}}}, 2, 0.5, 0, {} }, // pathops_visualizer.htm:7377 |
| }; // |
| |
| // from skpi_gino_com_16 |
| static IntersectData intersectDataSet17[] = { |
| { /*seg=7*/ {{{270.974121f, 770.025879f}, {234.948273f, 734}, {184, 734}}} |
| , 3, 0.74590454, 0.547660352, {} }, |
| { /*seg=8*/ {{{185, 734}, {252.93103f, 734}, {308, 789.06897f}, {308, 857}}} |
| , 4, 0.12052623, 0, {} }, |
| { /*seg=7*/ {{{270.974121f, 770.025879f}, {234.948273f, 734}, {184, 734}}} |
| , 3, 0.74590454, 1, {} }, |
| }; |
| |
| static IntersectData intersectDataSet18[] = { |
| { /*seg=7*/ {{{270.974121f, 770.025879f}, {234.948273f, 734}, {184, 734}}} |
| , 3, 0.74590454, 1, {} }, |
| { /*seg=8*/ {{{185, 734}, {252.93103f, 734}, {308, 789.06897f}, {308, 857}}} |
| , 4, 0.12052623, 0.217351928, {} }, |
| { /*seg=7*/ {{{270.974121f, 770.025879f}, {234.948273f, 734}, {184, 734}}} |
| , 3, 0.74590454, 0.547660352, {} }, |
| }; |
| |
| static IntersectData intersectDataSet19[] = { |
| { /*seg=1*/ {{{0, 1}, {3, 5}, {2, 1}, {3, 1}}} |
| , 4, 0.135148995, 0.134791946, {} }, |
| { /*seg=3*/ {{{1, 2}, {1, 2.15061641f}, {1, 2.21049166f}, {1.01366711f, 2.21379328f}}} |
| , 4, 0.956740456, 0.894913214, {} }, |
| { /*seg=1*/ {{{0, 1}, {3, 5}, {2, 1}, {3, 1}}} |
| , 4, 0.135148995, 0.551812363, {} }, |
| }; |
| |
| #define I(x) intersectDataSet##x |
| |
| static IntersectData* intersectDataSets[] = { |
| I(1), I(2), I(3), I(4), I(5), I(6), I(7), I(8), I(9), I(10), |
| I(11), I(12), I(13), I(14), I(15), I(16), I(17), I(18), I(19), |
| }; |
| |
| #undef I |
| #define I(x) (int) SK_ARRAY_COUNT(intersectDataSet##x) |
| |
| static const int intersectDataSetSizes[] = { |
| I(1), I(2), I(3), I(4), I(5), I(6), I(7), I(8), I(9), I(10), |
| I(11), I(12), I(13), I(14), I(15), I(16), I(17), I(18), I(19), |
| }; |
| |
| #undef I |
| |
| static const int intersectDataSetsSize = (int) SK_ARRAY_COUNT(intersectDataSetSizes); |
| |
| struct FourPoints { |
| SkPoint pts[4]; |
| }; |
| |
| DEF_TEST(PathOpsAngleAfter, reporter) { |
| SkSTArenaAlloc<4096> allocator; |
| SkOpContourHead contour; |
| SkOpGlobalState state(&contour, &allocator SkDEBUGPARAMS(false) SkDEBUGPARAMS(nullptr)); |
| contour.init(&state, false, false); |
| for (int index = intersectDataSetsSize - 1; index >= 0; --index) { |
| IntersectData* dataArray = intersectDataSets[index]; |
| const int dataSize = intersectDataSetSizes[index]; |
| for (int index2 = 0; index2 < dataSize - 2; ++index2) { |
| allocator.reset(); |
| contour.reset(); |
| for (int index3 = 0; index3 < 3; ++index3) { |
| IntersectData& data = dataArray[index2 + index3]; |
| SkPoint* temp = (SkPoint*) allocator.make<FourPoints>(); |
| for (int idx2 = 0; idx2 < data.fPtCount; ++idx2) { |
| temp[idx2] = data.fPts.fPts[idx2].asSkPoint(); |
| } |
| switch (data.fPtCount) { |
| case 2: { |
| contour.addLine(temp); |
| } break; |
| case 3: { |
| contour.addQuad(temp); |
| } break; |
| case 4: { |
| contour.addCubic(temp); |
| } break; |
| } |
| } |
| SkOpSegment* seg1 = contour.first(); |
| seg1->debugAddAngle(dataArray[index2 + 0].fTStart, dataArray[index2 + 0].fTEnd); |
| SkOpSegment* seg2 = seg1->next(); |
| seg2->debugAddAngle(dataArray[index2 + 1].fTStart, dataArray[index2 + 1].fTEnd); |
| SkOpSegment* seg3 = seg2->next(); |
| seg3->debugAddAngle(dataArray[index2 + 2].fTStart, dataArray[index2 + 2].fTEnd); |
| SkOpAngle& angle1 = *seg1->debugLastAngle(); |
| SkOpAngle& angle2 = *seg2->debugLastAngle(); |
| SkOpAngle& angle3 = *seg3->debugLastAngle(); |
| PathOpsAngleTester::SetNext(angle1, angle3); |
| // These data sets are seeded when the set itself fails, so likely the dataset does not |
| // match the expected result. The tests above return 1 when first added, but |
| // return 0 after the bug is fixed. |
| SkDEBUGCODE(int result =) PathOpsAngleTester::After(angle2, angle1); |
| SkASSERT(result == 0 || result == 1); |
| } |
| } |
| } |
| |
| void SkOpSegment::debugAddAngle(double startT, double endT) { |
| SkOpPtT* startPtT = startT == 0 ? fHead.ptT() : startT == 1 ? fTail.ptT() |
| : this->addT(startT); |
| SkOpPtT* endPtT = endT == 0 ? fHead.ptT() : endT == 1 ? fTail.ptT() |
| : this->addT(endT); |
| SkOpAngle* angle = this->globalState()->allocator()->make<SkOpAngle>(); |
| SkOpSpanBase* startSpan = &fHead; |
| while (startSpan->ptT() != startPtT) { |
| startSpan = startSpan->upCast()->next(); |
| } |
| SkOpSpanBase* endSpan = &fHead; |
| while (endSpan->ptT() != endPtT) { |
| endSpan = endSpan->upCast()->next(); |
| } |
| angle->set(startSpan, endSpan); |
| if (startT < endT) { |
| startSpan->upCast()->setToAngle(angle); |
| endSpan->setFromAngle(angle); |
| } else { |
| endSpan->upCast()->setToAngle(angle); |
| startSpan->setFromAngle(angle); |
| } |
| } |
| |
| DEF_TEST(PathOpsAngleAllOnOneSide, reporter) { |
| SkSTArenaAlloc<4096> allocator; |
| SkOpContourHead contour; |
| SkOpGlobalState state(&contour, &allocator SkDEBUGPARAMS(false) SkDEBUGPARAMS(nullptr)); |
| contour.init(&state, false, false); |
| SkPoint conicPts[3] = {{494.37100219726562f, 224.66200256347656f}, |
| {494.37360910682298f, 224.6729026561527f}, |
| {494.37600708007813f, 224.68400573730469f}}; |
| SkPoint linePts[2] = {{494.371002f, 224.662003f}, {494.375000f, 224.675995f}}; |
| for (int i = 10; i >= 0; --i) { |
| SkPoint modLinePts[2] = { linePts[0], linePts[1] }; |
| modLinePts[1].fX += i * .1f; |
| contour.addLine(modLinePts); |
| contour.addQuad(conicPts); |
| // contour.addConic(conicPts, 0.999935746f, &allocator); |
| SkOpSegment* first = contour.first(); |
| first->debugAddAngle(0, 1); |
| SkOpSegment* next = first->next(); |
| next->debugAddAngle(0, 1); |
| /* int result = */ |
| PathOpsAngleTester::AllOnOneSide(*first->debugLastAngle(), *next->debugLastAngle()); |
| // SkDebugf("i=%d result=%d\n", i , result); |
| // SkDebugf(""); |
| } |
| } |
